Corpectomy

Overview

A corpectomy (sometimes called a vertebrectomy) removes all or part of one or more vertebral bodies, the block-shaped bones that make up the front of the spine, along with the discs above and below. It is a more extensive operation than a discectomy because the problem being treated sits within or behind the bone itself, not just in the disc space. Once the vertebral body is removed, the surgeon rebuilds the gap with a structural cage, a metal or synthetic spacer packed with bone graft, or a solid piece of bone graft, and typically adds a plate, screws, or rods to hold everything stable while it heals into one fused segment.

Corpectomy can be done in the neck (cervical), mid-back (thoracic), or lower back (lumbar), and the approach, front, back, or side, depends on where the problem is and how many levels are involved. Because it both decompresses the spinal cord or nerves and reconstructs the spine's structural support, it is considered a combined decompression-and-fusion procedure rather than decompression alone.

When it's recommended

Corpectomy is considered when compression of the spinal cord or nerve roots comes from bone or a mass behind or within the vertebral body, and a disc-only procedure cannot adequately clear it. Common reasons include multilevel cervical spondylosis or ossification of the posterior longitudinal ligament (OPLL), where a ridge of bone or calcified ligament runs behind several vertebrae; a burst fracture, where a break in the vertebral body pushes bone fragments into the spinal canal and destabilizes the spine; a tumor, whether primary or metastatic, that has weakened or collapsed a vertebral body; or an infection that has destroyed enough bone to compromise stability.

Surgeons generally recommend corpectomy when there is evidence of spinal cord compression causing myelopathy (symptoms such as hand clumsiness, gait imbalance, or progressive weakness), a fracture that is unstable or significantly narrows the spinal canal, or bone destruction from tumor or infection that puts the spinal cord at risk or threatens the spine's ability to bear weight. It is typically reserved for situations where the compression cannot be relieved by removing disc material alone or where more than one level needs to be cleared through a single corridor.

How it works

The patient is placed under general anesthesia, and the surgeon reaches the spine through an approach suited to the level and the reason for surgery, most often from the front (anterior) for the neck, and from the front, side, or back for the mid- and lower back. After carefully moving aside or protecting the surrounding structures, such as the trachea, esophagus, and major blood vessels in the neck, the surgeon removes the affected vertebral body piece by piece, along with the adjacent discs, working down to healthy bone until the spinal cord or nerves are fully decompressed.

The resulting gap is then reconstructed with a structural cage or strut graft cut to the correct height, restoring the spine's alignment and load-bearing support. A plate and screws, or in some cases rods placed from the back, are added to hold the graft or cage in place and support the spine while new bone grows through and around it, a healing process called fusion. Multilevel corpectomies, or cases with significant instability, sometimes combine a front approach with a second, posterior stabilization procedure, either at the same time or as a staged operation.

Preparing for the procedure

Preparation typically includes recent imaging, MRI and CT, to map the extent of bone involvement and plan the reconstruction, along with routine pre-anesthesia clearance and blood work. Patients are asked to stop blood thinners, aspirin, and certain supplements beforehand per their surgeon's instructions, and smokers are strongly encouraged to quit, since nicotine significantly impairs the bone fusion the reconstruction depends on. For cervical corpectomy, some patients undergo a swallowing evaluation or additional imaging of the airway beforehand, since the front-of-neck approach can affect swallowing temporarily.

Patients should arrange help at home for the first several weeks, plan for a hospital stay of about four to seven days, and expect to be fitted for a brace or collar either before or immediately after surgery. Discussing pain control, mobility goals, and what a caregiver should watch for during recovery is also part of standard preparation.

Recovery and aftercare

Hospital stays after corpectomy commonly run four to seven days, longer than after a simple discectomy, to monitor for swallowing difficulty, breathing changes, and neurologic status as swelling settles. Many patients wear a rigid or semi-rigid brace or collar for several weeks to protect the reconstruction while fusion progresses, and activity is generally restricted, no heavy lifting, bending, or twisting, during this period. Fusion itself takes time: new bone grows into and around the graft or cage over roughly six weeks to three months, and follow-up imaging is used to confirm healing before restrictions are lifted.

Physical therapy is usually introduced once early healing is confirmed, often around four to six weeks, to rebuild strength, posture, and mobility. Neurologic symptoms such as numbness or weakness often improve gradually over weeks to months as the spinal cord or nerves recover from decompression, though the pace and extent of improvement vary depending on how long compression was present before surgery. Most patients are cleared for a full return to normal activity by three months, guided by their surgeon's assessment of imaging and symptoms.

Risks and considerations

Corpectomy is a larger operation than a discectomy or standard fusion, and it carries a correspondingly broader risk profile. General surgical risks include infection, bleeding, and blood clots. In the neck, the anterior approach carries specific risks of temporary or, less often, persistent difficulty swallowing, voice changes from irritation of the nerve to the voice box, and, rarely, injury to the esophagus or major blood vessels. In the chest, an approach that passes near the lung can carry a risk of lung complications.

Because the reconstruction depends on hardware and a graft or cage bridging a larger gap than in a single-disc fusion, hardware-related problems, subsidence (the cage settling into the softer bone above or below), graft displacement, or a delayed or incomplete fusion, are more common than after smaller procedures, and the risk rises with the number of levels treated. Multilevel corpectomies in particular carry a higher risk of implant shifting and may prompt a surgeon to add posterior stabilization for extra support. Corpectomy performed for tumor or infection also carries a higher rate of general postoperative complications, such as anemia and pulmonary issues, than decompression alone, reflecting both the extent of surgery and the underlying condition being treated. Careful surgical planning, appropriate hardware choice, and adherence to activity restrictions during the fusion window all help reduce these risks.